tetra fish hardy


Almost every fish keeper has stumbled upon any kind of tetra in their fish-keeping experience. This is because of the variety and popularity of tetras in captivity rather than in the wild. Tetras are also hardy fish; hence most of the aquarist trend to keep this fish on their beginning of aquarist carrier. Tetras are small freshwater fish originating from Africa, Central America, and South America. There are more than 150 species of tetras that…